Actions
Bug #52505
closedmgr/dashboard: improve formatting of histograms in Telemetry preview form
Status:
Resolved
Priority:
Normal
Assignee:
Category:
Component - Telemetry
Target version:
% Done:
0%
Source:
Community (dev)
Tags:
Backport:
Regression:
No
Severity:
5 - suggestion
Reviewed:
Description
Description of problem¶
The histogram data in the Telemetry dashboard preview is currently displayed vertically rather than horizontally, which makes for bad readability.
Environment¶
Not applicable
How reproducible¶
Steps:
- Go to the Ceph Dashboard once your cluster is deployed
- Click on Telemetry configuration (upper right corner)
- Enable the 'perf' channel under 'Telemetry report configuration'
- View the 'Telemetry report preview.' You should see that the data under the entry for 'osd_perf_histograms' is very long, with list items displayed vertically instead of horizontally.
Actual results¶
Example from the Telemetry preview form. Note that the vertical display creates poor readability:
"osd_perf_histograms": [
{
"op_r_latency_out_bytes_histogram": {
"axes": [
{
"buckets": 32,
"min": 0,
"name": "Latency (usec)",
"quant_size": 100000,
"scale_type": "log2",
"ranges": [
[
null,
-1
],
[
0,
99999
],
[
100000,
199999
],
[
200000,
399999
],
[
400000,
799999
],
[
800000,
1599999
],
[
1600000,
3199999
],
[
3200000,
6399999
],
[
6400000,
12799999
],
[
12800000,
25599999
],
[
25600000,
51199999
],
[
51200000,
102399999
],
[
102400000,
204799999
],
[
204800000,
409599999
],
[
409600000,
819199999
],
[
819200000,
1638399999
],
[
1638400000,
3276799999
],
[
3276800000,
6553599999
],
[
6553600000,
13107199999
],
[
13107200000,
26214399999
],
[
26214400000,
52428799999
],
[
52428800000,
104857599999
],
[
104857600000,
209715199999
],
[
209715200000,
419430399999
],
[
419430400000,
838860799999
],
[
838860800000,
1677721599999
],
[
1677721600000,
3355443199999
],
[
3355443200000,
6710886399999
],
[
6710886400000,
13421772799999
],
[
13421772800000,
26843545599999
],
[
26843545600000,
53687091199999
],
[
53687091200000,
null
]
]
},
{
"buckets": 32,
"min": 0,
"name": "Request size (bytes)",
"quant_size": 512,
"scale_type": "log2",
"ranges": [
[
null,
-1
],
[
0,
511
],
[
512,
1023
],
[
1024,
2047
],
[
2048,
4095
],
[
4096,
8191
],
[
8192,
16383
],
[
16384,
32767
],
[
32768,
65535
],
[
65536,
131071
],
[
131072,
262143
],
[
262144,
524287
],
[
524288,
1048575
],
[
1048576,
2097151
],
[
2097152,
4194303
],
[
4194304,
8388607
],
[
8388608,
16777215
],
[
16777216,
33554431
],
[
33554432,
67108863
],
[
67108864,
134217727
],
[
134217728,
268435455
],
[
268435456,
536870911
],
[
536870912,
1073741823
],
[
1073741824,
2147483647
],
[
2147483648,
4294967295
],
[
4294967296,
8589934591
],
[
8589934592,
17179869183
],
[
17179869184,
34359738367
],
[
34359738368,
68719476735
],
[
68719476736,
137438953471
],
[
137438953472,
274877906943
],
[
274877906944,
null
]
]
}
],
"values": [
[
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
],
[
0,
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0,
0,
0,
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],
[
0,
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0,
0,
0,
0,
0,
0,
0,
0
],
[
0,
2,
0,
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0,
0,
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],
[
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14,
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[
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[
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[
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[
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[
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[
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[
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],
[
0,
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0,
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0,
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0,
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],
[
0,
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],
[
0,
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],
[
0,
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],
[
0,
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],
[
0,
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0,
0,
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0,
0,
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0,
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0,
0,
0,
0,
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0,
0,
0,
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],
[
0,
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],
[
0,
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],
[
0,
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],
[
0,
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],
[
0,
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],
[
0,
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],
[
0,
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0,
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0,
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0,
0,
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0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
],
[
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
],
[
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
],
[
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
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0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
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],
[
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
],
[
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
],
[
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
],
[
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
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0,
0,
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0,
0,
0,
0,
0,
0,
0,
0
]
],
"num_combined_osds": 3
},
Expected results¶
Example of what the results should look like, ideally. Note the horizontal, rather than vertical, display of the data:
"op_r_latency_out_bytes_histogram": {
"axes": [
{
"buckets": 32,
"min": 0,
"name": "Latency (usec)",
"quant_size": 100000,
"ranges": [
"[null, -1]",
"[0, 99999]",
"[100000, 199999]",
"[200000, 399999]",
"[400000, 799999]",
"[800000, 1599999]",
"[1600000, 3199999]",
"[3200000, 6399999]",
"[6400000, 12799999]",
"[12800000, 25599999]",
"[25600000, 51199999]",
"[51200000, 102399999]",
"[102400000, 204799999]",
"[204800000, 409599999]",
"[409600000, 819199999]",
"[819200000, 1638399999]",
"[1638400000, 3276799999]",
"[3276800000, 6553599999]",
"[6553600000, 13107199999]",
"[13107200000, 26214399999]",
"[26214400000, 52428799999]",
"[52428800000, 104857599999]",
"[104857600000, 209715199999]",
"[209715200000, 419430399999]",
"[419430400000, 838860799999]",
"[838860800000, 1677721599999]",
"[1677721600000, 3355443199999]",
"[3355443200000, 6710886399999]",
"[6710886400000, 13421772799999]",
"[13421772800000, 26843545599999]",
"[26843545600000, 53687091199999]",
"[53687091200000, null]"
],
"scale_type": "log2"
},
{
"buckets": 32,
"min": 0,
"name": "Request size (bytes)",
"quant_size": 512,
"ranges": [
"[null, -1]",
"[0, 511]",
"[512, 1023]",
"[1024, 2047]",
"[2048, 4095]",
"[4096, 8191]",
"[8192, 16383]",
"[16384, 32767]",
"[32768, 65535]",
"[65536, 131071]",
"[131072, 262143]",
"[262144, 524287]",
"[524288, 1048575]",
"[1048576, 2097151]",
"[2097152, 4194303]",
"[4194304, 8388607]",
"[8388608, 16777215]",
"[16777216, 33554431]",
"[33554432, 67108863]",
"[67108864, 134217727]",
"[134217728, 268435455]",
"[268435456, 536870911]",
"[536870912, 1073741823]",
"[1073741824, 2147483647]",
"[2147483648, 4294967295]",
"[4294967296, 8589934591]",
"[8589934592, 17179869183]",
"[17179869184, 34359738367]",
"[34359738368, 68719476735]",
"[68719476736, 137438953471]",
"[137438953472, 274877906943]",
"[274877906944, null]"
],
"scale_type": "log2"
}
],
"values": [
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 215, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 166, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 155, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
"[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]",
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]
},
Additional info¶
Addressed by this PR: https://github.com/ceph/ceph/pull/43037
Updated by Ernesto Puerta over 2 years ago
- Status changed from In Progress to Resolved
- Target version set to v17.0.0
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